ABSTRACT
Objective The aim of this study was to investigate the expression of IL-6 induced by LPS in ovarian cancer and the effect of IL-6 on the expression of EZH2 mRNA and protein in ovarian cancer cell lines.MethodsCulture ovarian cancer cell lines, according to the different medium composition, establish the experimental group and the control group, detect the concentration of IL-6 in the supernatant of ovarian cancer cells by ELISA and the OD values of each group by MTT assay.Western blotting was used to detect the expression of EZH2 protein in ovarian cancer cells.The mRNA expression of EZH2 was detected by RT-PCR.ResultsThe expression of IL-6 in the supernatant of ovarian cancer cells was significantly higher than that in the control group (P<0.05).The proliferation of ovarian cancer cells was inhibited and the difference was statistically significant (P<0.05).The expression of EZH2 protein in ovarian cancer cells was significantly decreased, and there was statistical difference (P<0.05).The mRNA expression of EZH2 was significantly decreased, and there was statistical difference (P<0.05).ConclusionLPS could induce the expression of IL-6 and inhibit cell proliferation in ovarian cancer cells.IL-6 could inhibit the expression of EZH2.
ABSTRACT
Objective To detect the frequency and tissue distribution pattern of inhibin subunits in normal endometrium and periph-eral blood, and investigate the precise action in endometrium. Methods Normal cndometrial tissues were obtained from 16 women in the proliferative phase with salpingo-infertility, 11 women in the early secretory phase and 17 women in the late secretory phase with cervical cancer from Jan to Dee 2006. Expression of INH subunits were detected by immunohistochcmistry. INH-B in the blood samples were detec-ted. None of patients took any steroid drugs before 6 months of giving the samples. Results Immunohistochemistry showed that INH sub-units expressed in normal endometrial tissues. The expression intensity of INH subunits gradually increased in different menstrual phases. The level of inhibin-B in proliferative phase was higher than that in late secretory phase. Conclusions The relationship of inhibin-B level in serum and expression of inhibin subunits in endometrium showed that inhibin could be involved in autocrine/paracrine signaling and contrib-ute to several aspects of endometrial maturation.